DPT-500 Series Gas Dew Point Transmitter Introduction: DPT-500 series gas dew point transmitter is a new type of gas dew point sensor meticulously created by our company. It uses polymer thin film sensor technology made of new materials. Relying on this new material, it improves the ultra-low humidity signal capacity and stability of polymer thin films to extreme levels. Combined with automatic heating and the ultra-high stability of new materials, the recalibration cycle has been extended to more than two years. Combining up to 24 bit capacitance digital conversion chips, the entire machine has extremely high measurement resolution and accuracy. characteristic: 1. New polymer thin film sensor technology, resistant to condensation, condensation, particulate matter, oil vapor, and most chemical pollution; 2. Before leaving the factory, undergo strict 7-point calibration and traceability calibration (including certificates); 3. Designed with corrosion resistant materials (316L stainless steel, gold plated needles, sintered glass, epoxy resin), it has outstanding corrosion resistance; 4. The power supply voltage range is 18~24VDC, and there are internal protection measures against overvoltage, static electricity, reverse connection, and overcurrent; 5. The 4~20mA analog current output has excellent accuracy and stability, and the current output error does not exceed 16 μ A； 6. Internally integrated RS485 communication module, which can communicate with computers, PLCs, and other devices. Application field: After compressed air dryer and before humidity sensitive equipment Blown film process Medical gas Compressed air purification in the food and pharmaceutical industries All processes that require high quality clean and dry compressed air Technical parameters: Product model: DPT-500 Sensor type: polymer capacitive humidity sensor Sensor protection: 316L stainless steel sintered filter Calibration cycle: 1 year (recommended) Measuring range: - 80/- 60/- 40~20 ℃ Td Measurement accuracy: ± 3 ℃ Td (in air or nitrogen) Response time: 63% [90%] under gas conditions of 20 ℃ and 1 bar- 60 → - 20 ℃ Td 5S [15 seconds]- 20 → - 60 ℃ Td 45S [10 minutes] Measuring gas: H2O without cross gas Temperature range: - 40~60 ℃ Temperature accuracy: ± 2 ℃ Overall power consumption: ≤ 3W Digital signal: RS485 (Modbus RTU protocol) Analog signal: 4~20mA (load resistance ≤ 500 Ω) Connector: 5-pin M8 Main material: stainless steel Thread specification: G1/2 Weight: 100g IP level: IP66 Electrical compatibility: CE Ambient temperature: - 50~20 ℃ Ambient humidity: ≤ 90% RH Pressure range: 0~50bar (725psia) Sampling flow rate: does not affect the measurement accuracy (recommended 4L/min) Sample gas requirements: no liquid water, no particles, no oil gas, no corrosive gas. Working voltage: 12~24VDC
Introduction: DPT-500 series gas dew point transmitter is a new type of gas dew point sensor meticulously created by our company. It uses polymer thin film sensor technology made of new materials. Relying on this new material, it improves the ultra-low humidity signal capacity and stability of polymer thin films to extreme levels. Combined with automatic heating and the ultra-high stability of new materials, the recalibration cycle has been extended to more than two years. Combining up to 24 bit capacitance digital conversion chips, the entire machine has extremely high measurement resolution and accuracy.
